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168228480 = 2735712517
BaseRepresentation
bin10100000011011…
…11011010000000
3102201112220002110
422001233122000
5321031302410
624405415320
74111630020
oct1201573200
9381486073
10168228480
1186a62602
124840a540
1328b11ba4
14184b1a80
15eb80720
hexa06f680

168228480 has 128 divisors (see below), whose sum is σ = 612881280. Its totient is φ = 38449152.

The previous prime is 168228479. The next prime is 168228493. The reversal of 168228480 is 84822861.

168228480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1682284802 = 56601642966220800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7182 + ... + 19698.

It is an arithmetic number, because the mean of its divisors is an integer number (4788135).

Almost surely, 2168228480 is an apocalyptic number.

168228480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168228480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306440640).

168228480 is an abundant number, since it is smaller than the sum of its proper divisors (444652800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168228480 is a wasteful number, since it uses less digits than its factorization.

168228480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546 (or 12534 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 168228480 is about 12970.2922095071. The cubic root of 168228480 is about 552.0348644226.

The spelling of 168228480 in words is "one hundred sixty-eight million, two hundred twenty-eight thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 140 160 168 192 210 224 240 280 320 336 384 420 448 480 560 640 672 840 896 960 1120 1344 1680 1920 2240 2688 3360 4480 6720 12517 13440 25034 37551 50068 62585 75102 87619 100136 125170 150204 175238 187755 200272 250340 262857 300408 350476 375510 400544 438095 500680 525714 600816 700952 751020 801088 876190 1001360 1051428 1201632 1314285 1401904 1502040 1602176 1752380 2002720 2102856 2403264 2628570 2803808 3004080 3504760 4005440 4205712 4806528 5257140 5607616 6008160 7009520 8010880 8411424 10514280 11215232 12016320 14019040 16822848 21028560 24032640 28038080 33645696 42057120 56076160 84114240 168228480